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You are here: Home » CAT Questions » Averages, Mean » Weighted Average

Averages questions, answers : CAT 2016 Quant Preparation

Question 4 the day : March 06, 2003
The question for the day is from the topic Averages.

Question
Average cost of 5 apples and 4 mangoes is Rs. 36. The average cost of 7 apples and 8 mangoes is Rs. 48. Find the total cost of 24 apples and 24 mangoes.

  1. 1044
  2. 2088
  3. 720
  4. 324
Correct Answer is 2088. Choice (2) is right.

Explanatory Answer

Average cost of 5 apples and 4 mangoes = Rs. 36
Total cost = 36 * 9 = 324

Average cost of 7 apples and 8 mangoes = 48
Total cost = 48 * 15 = 720

Total cost of 12 apples and 12 mangoes = 324 + 720 = 1044
Therefore, cost of 24 apples and 24 mangoes = 1044 * 2 = 2088


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